The true genius shudders at incompleteness - and usually prefers silence to saying something which is not everything it could be.
You don't have to be brilliant, only a little bit wiser than the other guys, on average, for a long, long time.
You are not the opinion of someone who doesn't know you.
数学中真正的挑战不是解决问题，而是提出正确的问题。
You don't have to be a genius or a visionary to succeed. You just need to be persistent.